Water-filter.



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D. M.A PEAUTZ. WATER FILTER.

APPLICATION FILED JUNE 17, 1909.

2 SHEETS-SHEET 1.

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Patented' J an. 2, 1912.

D. M. PFAUTZ.

WATER FILTER.

APPLICATION FILED JUNE 17, 1909.

Patented J an. 2, 1912.

2 SHEETS-SHEET 2 @TTS PATENT OFF-TCE;

DANIEL M. PFAUTZ, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO WILLIAM H.TIGERJVIAN, 0F PHILADELPHIA, PENNSYLVANIA.

WATER-FILTER.

Specicaton of Letters Patent.

Patented Jan. 2, 1912.

Application filed June 17, 1909. Serial No. 502,770.

To all whom it may concern:

Be it known that l, DANIEL M. PFAUTZ, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inVVater-Filters, of which the following is a specification.

My invention relates to improvements in water filters, the object of theinvention being to provide an improved filter, designed primarily forprivate use, adapted to be connected with the water main from thestreet, and which will effectually filter the water in its passage fromthe street main to the spigots in the house, and compel water in transitto pass through two filtering tanks containing preferably coarse sandand pulverized pumice stone respectively, and compel the water to passupwardly through said filtering materials to thoroughly remove foreignmatter from the water.

6A further object is to provide improved constructions of tanks, withimproved means for directing the flow of water through said tanks, andwhich enables the filtering materials in said tanks to be thoroughlywashed out if desired.

l/Vith these and other objects in view, the invention consists incertain novel Jfeatures of construction, and combinations andarrangements of parts as will be more fully hereinafter described andpointed out in the claims.

Figure 1, is a view in vertical longitudinal sect-ion, and Fig. 2, is aview in horizontal section on the line 4 4 of Fig. 3.

1 represents a base plate, to which the tank bases 2, 2, are securelybolted. These tank bases have inlet chambers 3, and are separated fromthe filtering chambers 4 above, by means of perforated plates 5, whichlatter are positioned between annular flanges 6 at the lower end of thechamber wall 4 and the bases 2, and are securely clamped between saidparts by screws or bolts 7. The upper ends of the chamber walls 4l arealso provided with annular flanges 8, upon which perforated plates 9 arelocated, and outlet chambers 10 are lo- `cated over said plates 9. Theiianges 8,

plates 9, and chambers 10, are securely held together by means of boltsor screws 11. Each base 2 is provided with an internal integral block 12located in the inlet chamber 3, and cored through a water passage 13,said blocks being internally screw threaded at the ends of said passages13.

Both of the tanks, which for convenience of reference, I have givenreference char- -acters A and B respectively, are precisely alike inconstruction, and the hereinafter description of one willfapply alike toboth.

The passage 13, in the form of an L, receives in its vertical portion,the screw threaded lower end of a tube 14, which latter projects throughcentral openings in perforated plates 5 and 9, and at its upper end, aninternally screw threaded collar 15 is screwed onto the tube 14, and ismade with an internal bevel at its upper end, forming a valve seat for avalve 16. This valve 16 is secured upon the lower end of a valve stem17, having a hand wheel 18 at its upper end above the filtering tank.The screw threaded portion of stem 17 engages internal screw threads ina cap plate 19, the latter secured by bolts or screws 20 over an opening21 in the top of outlet 4, and when said cap plate is removed, readyaccess may be had to the inside of the filtering tank. A cap nut 22 isscrewed onto a packing cup on the cap plate 19, so as to inclose anysuitable form of packing around the valve stem.

23 represents the water supply main, which is provided with a valve 24,and communicates with the inlet chamber 3 of tank A. A pipe 25 connectsthe outlet end of passage 13 in tank A with the inlet chamber 3 of tankB, and an outlet pipe 26 having a valve 27 therein, communicates withthe outlet end of the passage 13 in tank B.

23 represents a drain pipe connected by branch pipes 29 with the inletchambers 3 of tanks A and B, and provided with valves 30 in said branchpipes. A wash out pipe 31 communicates at one end with main 23, and isprovided with a valve 32. This pipe 31 is connected by branch pipes 33with the outlet chambers l() of tanks A and B, and valves 34 areprovided in the said branch pipes 33. a

In the chambers 4 between perforated plates 5 and 9, and around tube 14,filtering material 35 is located. This filtering material may of coursevary, one preferable combination being clean sand in the filteringchamber of tank A, and pulverized pumice stone in the filtering chamberof tank B.

The operation is as follows: Normally valves 16 are moved upwardly, soas to open communication with tubes 14. Valves 24, 27 and both valves16, are open, while valves 32, 34 and 30 are closed. Vater from main 23enters the inlet chamber 3 of tank A, and passes upwardly through theperforated plates 5 and 9, and through the filtering material in chamber4, into the outlet chamber 10 of tank A, from which valves 32, 34 and 30are then opened, andl the water from main 23 will fiow through pipe 31and branch pipes 33 int-o the outlet chambers 10 of both tanks A and B,and thence downwardly through the filtering materials to thoroughly washthe same, into the inlet chambers 3, and from the latter through thebranch pipes 29 to the drain 28..

Various slight changes might be made in the general form andarrangements of parts described without departing from my invention, andhence I donot restrict myself to the precise details set forth, butconsider myself at liberty to make such changes and alterations asfairly fall within the spirit and scope of the claims.

I-Iaving thus described my invention what I claim as new and desire tosecure by Letters Patent is:

1. In a water lter, an inlet chamber, a filtering chamber and an outletchamber, each formed of a separate casting and arranged one above theother, a perforated plate arranged between the inlet chamber and thefiltering chamber, and a similar plate arranged between the filteringchamber and the outlet chamber, said inlet chamber comprising the baseof the filter and consisting of a hollow casting having a block formedintegrally therewith within the chamber and provided with an L-shapedpassage way, the inner end of said passage way opening through the topof said block at substantially the center of the device and the otherend opening through the sidewall of said inlet chamber,said ends beingthreaded, a pipe extending vertically through said perforated plates andthe filtering chamber, and having its lower end threaded into said blockin communication with the inner end of said passage way, an outlet pipeeXtending from the outer end of said passage way, and an inlet pipecommunicating with said inlet chamber, a valve adapted to close the endof said tube in the outlet chamber, said outlet chamber having anopening in its top of a diameter greater than the diameter of the valve,a cap plate removably secured over said opening and a stem on said valvethreaded through said cap qfplate, substantially as described.

2. A water lter comprising a base plate, a plurality of filtering tankssecured on said base plate, each filtering tank comprising a lower basemember having an inlet chamber and an outlet passage way therethrough,an upper outlet chamber, and a filtering chamber between the inlet andoutlet chambers, a vertical tube connecting the outlet chamber of eachtank with the said passage way in its respective base member, said tubeextending through the filtering chamber, a valve adapted to close theend of said tube in the outlet chamber, said outlet chamber having anopening in its top of a diameter greater than the diameter of the valve,

a cap plate removably secured over said opening and a stem on said valvethreaded through said cap plate, a main communr eating with the inletchamber of one tank, a valve in said main, a pipe connecting the passageway in the base memberof one tank with the inlet chamber of the neX`t,an outlet pipe communicating with the passage way in the last tank, avalve in said outlet pipe, a washout pipe extending from said main, avalve in said washout pipe, branch pipes connecting the washout pipewith the outlet chambers of the respective tanks, valves in said branchpipes, a drain pipe, branchl pipes connecting said drain pipe with eachof said inlet chambers, and valves in said branch pipes, whereby eitheror all of said chambers may be flushed out when desired, substantiallyas described.

In testimony whereof vI have signed my name to this specification in thepresence of two subscribing witnesses.

DANIEL M. PFAUTZ.

Witnesses:

R. II. KRENKEL, J. A. L. MULHALL.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents. Washington, D. C.

